Midland Industries 59109SMLSXX Seamless Pipe Nipple 1in Xxh

Product Description

The MIDLAND INDUSTRIES 59109SMLSXX is a seamless black iron pipe nipple rated to XXH (Double Extra Heavy) schedule, designed for high-pressure and high-demand piping applications. Measuring 6 inches in length with 1-inch male pipe thread (MPT) connections on both ends, this nipple is machined from malleable iron and carries a black finish. The seamless construction eliminates a weld seam along the body, which improves pressure integrity under demanding conditions. It weighs 1.73 pounds and fits within a 1.3-inch width profile, making it a compact but robust threaded connector for iron pipe systems.

This nipple is suited for residential and commercial gas distribution, steam, and industrial fluid piping systems where extra-heavy wall thickness is specified. It is commonly installed in close-nipple or run-of-pipe configurations requiring a short, rigid threaded connector. Plumbers, pipefitters, and mechanical contractors working on black iron gas lines or steam systems will find this fitting appropriate where standard or extra-heavy schedule ratings are insufficient and XXH wall thickness is required by design or code.

Key Features

• XXH (Double Extra Heavy) schedule rating for elevated pressure service
• Seamless construction provides uniform wall thickness and eliminates weld-seam weakness
• 1-inch MPT on both ends for standard threaded iron pipe connections
• 6-inch body length suits short-run and close-coupled piping layouts
• Black iron finish compatible with gas and steam piping applications
• Malleable iron material offers strength and resistance to mechanical stress

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch black iron threaded pipe systems using standard NPT-compatible fittings and valves rated for XXH schedule service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IFGC or ASME B31 standards for the intended service. Shut off and depressurize the line completely before removing or threading any fittings. Apply an approved thread sealant or PTFE tape to the male threads before making up the joint, and tighten to the fitting manufacturer's recommended engagement depth using a pipe wrench. Do not over-thread or force misaligned connections, as this can compromise the seam-free integrity of the nipple body.